Bug#977944: add support for gcc-11

Helmut Grohne <[email protected]> Mon, 21 Dec 2020 22:44:05 +0100

Newsgroups	gmane.linux.debian.devel.toolchain
Message-ID	<[email protected]>

Package: cross-gcc-dev
User: [email protected]
Usertags: rebootstrap

Initial please add support for gcc-11. As usual, I don't expect it to
work. Just make it apply (on the outer level), I'll send fixes for
further issues.

Helmut